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Date: Thu, 21 Nov 2019 09:54:06 +0800 From: Bibby Hsieh <bibby.hsieh@...iatek.com> To: Matthias Brugger <matthias.bgg@...il.com>, Rob Herring <robh+dt@...nel.org>, CK HU <ck.hu@...iatek.com> CC: <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>, <linux-arm-kernel@...ts.infradead.org>, <linux-mediatek@...ts.infradead.org>, <srv_heupstream@...iatek.com>, Nicolas Boichat <drinkcat@...omium.org>, Dennis-YC Hsieh <dennis-yc.hsieh@...iatek.com>, Bibby Hsieh <bibby.hsieh@...iatek.com> Subject: [PATCH v17 2/6] soc: mediatek: cmdq: remove OR opertaion from err return That make debugging confuseidly when we OR two error return number. Signed-off-by: Bibby Hsieh <bibby.hsieh@...iatek.com> Reviewed-by: CK Hu <ck.hu@...iatek.com> --- drivers/soc/mediatek/mtk-cmdq-helper.c | 11 ++++++++--- 1 file changed, 8 insertions(+), 3 deletions(-) diff --git a/drivers/soc/mediatek/mtk-cmdq-helper.c b/drivers/soc/mediatek/mtk-cmdq-helper.c index 3c82de5f9417..c8fb69787649 100644 --- a/drivers/soc/mediatek/mtk-cmdq-helper.c +++ b/drivers/soc/mediatek/mtk-cmdq-helper.c @@ -149,13 +149,16 @@ int cmdq_pkt_write_mask(struct cmdq_pkt *pkt, u8 subsys, u16 offset, u32 value, u32 mask) { u32 offset_mask = offset; - int err = 0; + int err; if (mask != 0xffffffff) { err = cmdq_pkt_append_command(pkt, CMDQ_CODE_MASK, 0, ~mask); + if (err < 0) + return err; + offset_mask |= CMDQ_WRITE_ENABLE_MASK; } - err |= cmdq_pkt_write(pkt, subsys, offset_mask, value); + err = cmdq_pkt_write(pkt, subsys, offset_mask, value); return err; } @@ -197,9 +200,11 @@ static int cmdq_pkt_finalize(struct cmdq_pkt *pkt) /* insert EOC and generate IRQ for each command iteration */ err = cmdq_pkt_append_command(pkt, CMDQ_CODE_EOC, 0, CMDQ_EOC_IRQ_EN); + if (err < 0) + return err; /* JUMP to end */ - err |= cmdq_pkt_append_command(pkt, CMDQ_CODE_JUMP, 0, CMDQ_JUMP_PASS); + err = cmdq_pkt_append_command(pkt, CMDQ_CODE_JUMP, 0, CMDQ_JUMP_PASS); return err; } -- 2.18.0
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